Caesium137.9/25/2023 Cs-137 has a half-life of about 30 years. One of the biggest contaminations of Cs-137 happened during the Chernobyl accident of 1986, when about 27 kg of the metal entered the atmosphere. Im Blut und in 22 Organen und Muskeln von fnf Ratten wurde die Verteilung von Caesium 137 nach einer intraperitonealen Injektion und von Kalium besti. Cesium-137 (137 Cs), which is an artificial radioactive substance, was found at concentrations more than 20 times higher than the recommended limit on two roads in a residential area in Nowon-gu, Seoul.This was discovered accidentally when a man carrying a radiation detector measured the radioactivity. (A more common example is mercury.) Cs-137 is most commonly produced as a byproduct in fission reactions of uranium and plutonium in nuclear plants or nuclear explosions. Silvery white, soft, and malleable, Cs-137 is one of the very few metals that exist in liquid form at room temperature. However, the container was found intact, and the isotope safe.Ĭaesium-137 (atomic mass 137) is a heavier, radioactive isotope of Caesium (Cs) whose most stable form is Cs-133. The mysterious disappearance of the 1 ft × 1 ft box had triggered concern and some panic, as both police and ONGC officials searched frantically for it. From: Clinical Gynecologic Oncology (Eighth Edition), 2012 View all Topics Add to Mendeley About this page General Considerations Poul Bjerregaard. A small container of radioactive Caesium-137, which went missing on January 16 from a truck ferrying machinery and tools from an ONGC exploration site near Machilipatnam to Rajahmundry 120 km away, was retrieved from a scrap shop at Kalindindi village in Krishna district of Andhra Pradesh late Wednesday evening. Caesium-137 137Cs (Cesium-137), used in low dose rate (LDR) applications, is a by-product of the fission process in a nuclear reactor and decays via beta and gamma emission.
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